Keywords: Interstate TDR-1 in flight over Philadelphia Navy Yard 1943.jpg A U S Navy Interstate TDR-1 drone in flight over the Philadelphia Naval Shipyard and the Naval Aircraft Factory Note the two Independence-class carriers below Official U S Navy photograph from the Naval Air Experimental Station Philadalphia Navy Yard http //www flickr com/photos/sdasmarchives/4564010133/ part of the http //www flickr com/people/sdasmarchives/ San Diego Air Space Museum archives ca 1943 USN PD-USGov-Military-Navy Interstate TDR Philadelphia Naval Shipyard |